In a crowded city at a busy bus stop, a beautiful woman wearing a tight
mini skirt was waiting for a bus.  As the bus stopped and it was her
turn to get on, she became aware that her skirt was too tight to allow
her to come up to the height of the first step of the bus.

Slightly embarrassed and with a quick smile to the bus driver, she
reached behind her to unzip her skirt a little, thinking that this would give her enough slack to raise her leg.  She tried to take the step, only to discover that she couldn't.

So, a little more embarrassed, she once again reached behind her to
unzip her skirt a little more, and for the second time attempted the
step. Once again, much to her chagrin, she could not raise her leg.  With a little smile to the driver, she again reached behind to unzip a little more and again was unable to take the step.

About this time, a large Texan who was standing behind her, picked her
up easily by the waist and placed her gently on the step of the bus.

She went ballistic and turned to the would-be Samaritan and yelled, "How dare you touch my body!  I don't even know who you are!"

The Texan smiled and drawled, "Well, ma'am, normally I would agree with
you, but after you unzipped my fly three times, I kinda figured we was friends."